Disk for peeling-machines



C. F. SMITH.

DISK FOR FEELING MACHINES.

APPLICATION FILED JULY 22.1920.

1,384,356. Patented July 12, 1921.

f gwr Ev EFJIIJITCK W I x STATES PA CHARLES F. SMITH, OF CHICAGO, ILLINOIS, ASSIGNOR TO MAXIM nmuracrcnme COMPANY, A. CORPORATION OF ILLINOIS.

msx FOR FEELING-MACHINES.

Application filed July 22, 1920. Serial No.

description of the same, reference being bad to the accompanying drawings, and to the numerals of reference marked. thereon, which" form a part of this specification.

This invention relates more particularly to a disk for a peeling machine, for remove ing the skins from potatoes, carrots, beets or other similar vegetables by abrasion. Mas

chines of this type have hitherto been conof a contalner having sharp ribs orstructed file like striations on its inner periphery and arotating peeling disk havin also sharp IlbS or file like striations on su stantially a flat surface except where the surface has been interrupted by rounded agitating humps. Such machines have been found unsatisfactory for the reason that the ribs or striations especially on the rotating disk would often out too deeply and would frequently remove too much peel from some I parts of the potatoes in rotating or turning over so that they would not be properly peeled, and the ribs or file like striations would be quickly worn to such a degree that they failed to accomplish their function, and as they could not be resharpened, new parts had to be substituted. In later types of machines, an abrasive substance such as. the well-known carborundurn has been used, but

' in such cases it has been found that there has been considerable waste of the'vegetables and this lack of eiliciency has tended greatly to reduce the popularity of such disks with the users. Further the flat surface of the disk intermediate the rounded lumps fails to produce the quickly desired agitation of the potatoes to readily and satisfactorily present the different parts to the abrasive surfaces of the disk and container.

In my invention I have overcome these defects by constructing the upper surface oil the abrasive peeling disk with no fiat parts upon its contour, and by grading the surface between various points so that the potatoes or vegetables which it is desired to peel are iving a swirling motion at certain periods.

his construction further allows me to use Specification of Letters Patent.

in the county of Cook Patented July 12, 1921.

any suitable abrasive surface on the disk such as concrete and. carborundum for example, which rubs theskins from the potatoes by a kind of pecking and abrasive action.

It is therefore one of the ob'ects of my invention to so construct the disk that the vegetables are thoroughly agitated by the peculiar contour of the abrasive surface.

It is a further object of this invention to TENT OFFICE,

so grade the abrasive disk that the potatoes or vegetables are given a swirling motion as they are thrown outwardl awa from the rotative axis by the centrii iigal brce of the rotating disk.

Other objects and advantages consist in the novel and eculiar structure of the abrasive part of t e disk aswill hereinafter be more specifically pointed out.

The invention (in a preferred form) is illustrated in the drawings as hereinafter more fully described.

On the drawings:

. Figure 1 is a section of an, abrasive c linder showing the disk-in;plan view an' the operating i'neans therefor.

. Fig. 2 isa section on line 2-2 of Fig. 1.

Fig. 3 is a section through the disk on line.

3-3 of Fig. 2.

Fig. 4 is a section on line 4.4: oi Fig. 2. Fig. 5 is a develo ment of the disk between the points A in Fig; 2 showing the rise from A to B in a. counter clockwise di rection, and I r Fig. 6 is a perspectiveview of the disk.

As shown on the drawings:

Referring 110WI1'101e specifically to the drawings, in which similar reference charactersdenote similar features in the diiierent figures, 1 denotes a cylinder having an inner abrasive part. An abrasive disk 3 in rotatively supported within the cylinder and driven by any suitable means such as a motor.8 and intermeshi'ng gears 9 and 10, for

- example. I

in Fig. 2'to Fig.6 ll have shown an abrasive disk which embodies my invention. The disk comprises two parts, a lower membar or base made of metal and an upper part of abrasive material. such as a mixture of concrete and carborun'dum. By using such a substance as concrete which is somewhat plastic and moldable before it becomes set,

ll am enabled to readily form the contour of the abrasive surface to produce the proper agitation of the which shows two stepped potatoes and the swirlin motion. From t e outer circumferentia part of the disk the surface of- .the disk deiscends or slopes downwardly quite suddenly at first and then more gradually until ap-'- halfway point to the rota-- proximately the tive axis. The descending slope, noted, is in the form of a curve. proximatel the half way point, has a gra ual u ward curve or slope unti approximately t e rotative axis is reached. The exact proportionment of arts, however, is immaterial as it is contemp ated that various other proportionments might be used to produce the same result. The radual curve near the rotative axis has a ten ency to cause the potatoes to more quickly move away from the rotative axis.

A very important feature of said disk, exists in constructing it with a pluralit of vertically stepped portions two of whic are shown in the resent embodiit will be From apthe surface .ment of my invention. It Wlll be noted that two partitions 4 and 5 have been secured in the base of the disk. The upper surfaces of these partitions are curved a proximately the same as the upper surface 0 the abrasive disk. The abrasive surface has been made .flush with the top of the partition on one side thereof, and on the other side of said partition the surface has only been made ush therewith at a point near the rotative axis, the rest of the surface on this side of the partition starts from a point below the top ofsaid partition and gradually rises until the top of the next partition is reached. In the present embodiment of my invention ortions, Fig. 5 shows the rise on the are S own in Fig. 2, from the lower side of partition 4 in a counter-clockwise direction to the partition 5. It .wi1l, therefore be noted that while the upper surface of the abrasive disk has a continuously curved has a slope from one stepped portion to the other, as shown in Fig.

of construction curved contour on its upper surface, an

contour, it also 5. The combination of the curved contour with said last. men-- tioned slope has a tendency to thoroughly agitate the potatoes and give them a SWllfling motion. It will be noted that from the pit ofone stepped axis to the top of t plortion near the rotative e next stepped portion, there is both a radial and circu ar rise producing this swir mg motion, which has a tendency to turn the potatoes. A.- pluralit of dram holes 6 and are made in the'dlsk through whic the-dirt and peelings maiy'be washed 'The 0 when is as fol ows:

The isk is rotated in a c after. the requisite uahsnni lar vegetables ave been placed in the cylinder. The centrifuzal mm created by the-rapidly revolving 1 portions between h table.

, lockwise direcs.

' tion by any suitable means such as the motor and gears shown,

tity of potatoes or 1 the particu ar surface contour of the disk also assist in agitating the potatoes. The disk moves faster than the mass of potatoes in the container, and constantlycauses the potatoes to turn as they drop over the acute stepped portion. In order to wash away the dirt and peelings which have been removed, water or a similar wash may be directed over the potatoes in the container.

It will therefore be seen that I have devised an abrasive disk with a novel contour on its abrading surface whereby the potatoes or vegetables are thoroughly agitated and the skins removed by apure rubbing action.

While I have shown and described my invention in a preferred form, I' am aware that many changes and modifications may be made therein without departing from the principles of my invention, and I therefore do not propose limiting the patent grants thereon otherwise than necessitated by the prior art.

I claim as my invention:

1. In a device of the class described, an abrasive disk having a plurality of stepped portions.

2. In a device of the class described, an 'abrasive disk having a plurality of stepped port ons, the surfaces between said stepped portions being inclined.

3. vegetable peeling diskcomprising an abrasive member having a continuous].

provided with ste ped portions, the formation between sai stepped tationp 4. In avegetable tary peeling disk having'fa contour 0 vary: ing gradients whereby a swirling motion may be imparted to a vegetable-g;

5. peeling disk having vertical steps upon ts upper surface, the circumferential said steps ha. ascentsand slopes whereby a swir ng motion is adaptedto beimpartedto a'vege- In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses. I

QHARLESRSLHTH.

' Gimme W. Hume, J12,

EARhM.-HARDIND. r

portions being. gradually inclined in one direction of r0 radial,

peeling machine a 

